Home / 2,539.39-3,801.79-1,876.81

Finding the Fourth Proportional to 2,539.39, 3,801.79 and 1,876.81

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Solution

The fourth proportional to 2,539.39, 3,801.79 and 1,876.81 is: 2,809.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,539.39 : 3,801.79 = 1,876.81 : x
  2. Step 2: Convert to fraction form
    2,539.39/3,801.79 = 1,876.81/x
  3. Step 3: Cross multiply
    2,539.39x = 3,801.79 × 1,876.81
  4. Step 4: Simplify right side
    2,539.39x = 7,135,209.10
  5. Step 5: Solve for x
    x = 7,135,209.10/2,539.39
  6. Step 6: Final answer
    x = 2,809.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.